By Doug Bell
Matthew 3:13”Then Jesus came from Galilee to the Jordan to John, to be baptized by him.14John would have prevented him, saying, “I need to be baptized by you, and do you come to me?”15But Jesus answered him,“Let it be so now, for thus it is fitting for us to fulfill all righteousness.”Then he consented.16And when Jesus was baptized, immediately he went up from the water, and behold, the heavens were opened to him, and he saw the Spirit of God descending like a dove and coming to rest on him;17and behold, a voice from heaven said, “This is my beloved Son, with whom I am well pleased.”
Here we have the Baptism of our Lord Jesus by the prophet John the Baptist. At first John hesitates, saying, “I need to be baptized by you...” But understanding that Jesus said it needed to be done to “fulfill righteousness.” (That He Jesus was giving by example, the need for all true believers to be baptized as an ‘Outward sign, for an inward change’).
But, the extraordinary thing about Jesus’ baptism was who showed up! The Scripture tell us that, “immediately he went up from the water, and behold, the heavens were opened to him, and he saw the Spirit of God descending like a dove and coming to rest on him;17and behold, a voice from heaven said, “This is my beloved Son, with whom I am well pleased.”
Here we have the Holy Trinity, all being identified at the Baptism. Jesus being baptized, the Holy Spirit of God descending like a dove, and The Father with His Words from Heaven! Though the word ‘Trinity’ nowhere appears in the Bible, it’s a word Termed by Early Church Father Tertullian. https://en.m.wikipedia.org/wiki/Tertullian
It is shown to be true by all the references especially in the New Testament to the Trinity.
For further study on the Trinity, consider the Full article by SINCLAIR B. FERGUSON; https://www.monergism.com/trinity-new-testament
Here is just a part of the article;
The Trinity is present in Jesus’
(i) Baptism (Luke 3:21).
(ii) Temptations (Luke 4:1-12).
(iii) Ministry (Matthew 12:25-28).
4. The Trinity is seen as essential to the accomplishing of redemption and to its application:
The summary of all the blessings of our redemption is expressed in trinitarian terms (Ephesians 2:18).
The whole of the Christian life is marked by the reception of the name of, and involves personal fellowship with, the Trinity in baptism (Matthew 28:18-20).
The nature of fellowship with God is seen in trinitarian terms (2 Corinthians 13:14).
The Christian life as kingdom-life is trinitarian (Romans 14:17-18).
The Christian life as life in the Spirit is viewed within a trinitarian matrix (Ephesians 5:18-20).
Sanctification involves the work of the Trinity (1 Corinthians 6:17-20).
Ongoing faith depends on the Trinity (Jude 20-21).
True worship is always trinitarian (Philippians 3:3).
Worldwide evangelism is a trinitarian mission (Matthew 28:18-20).